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drbd: Implemented the disk-timeout option

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When the disk-timeout is active, and it expires for a single request,
we consider the local disk as D_FAILED. Note: With this change,
I made both timeout based state transitions HARD state transitions.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Philipp Reisner
2011-06-29 14:06:08 +02:00
parent 02ee8f95fa
commit dfa8bedbfe
5 changed files with 31 additions and 14 deletions
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include/linux/drbd_nl.h
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@@ -31,6 +31,7 @@ NL_PACKET(disk_conf, 3,
NL_INTEGER( 56, T_MAY_IGNORE, max_bio_bvecs)
NL_BIT( 57, T_MAY_IGNORE, no_disk_barrier)
NL_BIT( 58, T_MAY_IGNORE, no_disk_drain)
NL_INTEGER( 89, T_MAY_IGNORE, disk_timeout)
)
NL_PACKET(detach, 4,